Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
On 10/14/2010 09:18 AM, Alon Levy wrote: > > Can you elaborate? > The quality of rate information is too low, and the delays in the system are too large to enable consistent convergence. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
- "H. Peter Anvin" wrote: > On 10/14/2010 06:51 AM, Mike Snitzer wrote: > > > > Was just wondering if you've been able to put some time to the > > rate-matching issues? > > > > Has this usb-audio patch evolved and I'm just missing it? > > > > Thanks for doing this work! > > Mike > > > > The sad result really is: it doesn't work, and it probably will never > work. > Can you elaborate? > -hpa > > -- > H. Peter Anvin, Intel Open Source Technology Center > I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
I meant just take the Fedora 13 DVD and install it onto a virtual hard disk. More later when I'm at a real computer. "malc" wrote: >On Fri, 10 Sep 2010, H. Peter Anvin wrote: > >> On 09/10/2010 07:47 PM, H. Peter Anvin wrote: >> > On 09/10/2010 06:08 PM, H. Peter Anvin wrote: >> >> >> >> Any remotely recent stock distro should have support for it. I say >> >> "should", because I haven't actually tested it with a Linux guest yet. >> >> >> >> I'll try to do that later; I have to leave now. >> >> >> > >> > Just tested it on a stock Fedora 13 64 bit VM; it behaves exactly the >> > same way as under Win7. >> > >Sorry but I have no idea what "stock Fedora 13 64 bit VM" is. > >> Just for the sake of completeness, the Qemu command line was: >> >> ~/qemu/git-kvm/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -smp 2 -m >> 1024 -usb -soundhw usb -hda qemu-fc13-64.img -serial stdio >> >> ... and this was with the usb-audio patch applied against top of the the >> qemu-kvm git tree (the patch applies against the top of the main qemu >> tree too, but because KVM isn't very stable there it was faster to use >> the KVM tree.) > ^^^ this doesn't parse, somewhere QEMU was replaced by KVM i think > > >Anywho, i tried it with linux-test and custom/minimal compiled 2.6.32 [1] > >x86_64-softmmu/qemu-system-x86_64 -kernel \ >~/x/bld/linux-2.6.32/arch/x86_64/boot/bzImage -append "root=/dev/hda" \ >-vnc :0 -soundhw usb ~/x/img/linux-0.2.img -usb [-enable-kvm] >^^^ this has no consequence [2] > >Inside the guest `$ madplay 20thfull.mp2' and things sounded fine with OSS, >with ALSA the story is somewhat different, it stuttered for a while but then >settled and things went back to smooth playback. > >So i need a reproduction scenario > >[1] .config available on request >[2] Well actually it has - on the speed `-enable-kvm' makes boot sluggish >for whatever reason > >-- >mailto:av1...@comtv.ru -- Sent from my mobile phone. Please pardon any lack of formatting. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
On Fri, 10 Sep 2010, H. Peter Anvin wrote: > On 09/10/2010 07:47 PM, H. Peter Anvin wrote: > > On 09/10/2010 06:08 PM, H. Peter Anvin wrote: > >> > >> Any remotely recent stock distro should have support for it. I say > >> "should", because I haven't actually tested it with a Linux guest yet. > >> > >> I'll try to do that later; I have to leave now. > >> > > > > Just tested it on a stock Fedora 13 64 bit VM; it behaves exactly the > > same way as under Win7. > Sorry but I have no idea what "stock Fedora 13 64 bit VM" is. > Just for the sake of completeness, the Qemu command line was: > > ~/qemu/git-kvm/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -smp 2 -m > 1024 -usb -soundhw usb -hda qemu-fc13-64.img -serial stdio > > ... and this was with the usb-audio patch applied against top of the the > qemu-kvm git tree (the patch applies against the top of the main qemu > tree too, but because KVM isn't very stable there it was faster to use > the KVM tree.) ^^^ this doesn't parse, somewhere QEMU was replaced by KVM i think Anywho, i tried it with linux-test and custom/minimal compiled 2.6.32 [1] x86_64-softmmu/qemu-system-x86_64 -kernel \ ~/x/bld/linux-2.6.32/arch/x86_64/boot/bzImage -append "root=/dev/hda" \ -vnc :0 -soundhw usb ~/x/img/linux-0.2.img -usb [-enable-kvm] ^^^ this has no consequence [2] Inside the guest `$ madplay 20thfull.mp2' and things sounded fine with OSS, with ALSA the story is somewhat different, it stuttered for a while but then settled and things went back to smooth playback. So i need a reproduction scenario [1] .config available on request [2] Well actually it has - on the speed `-enable-kvm' makes boot sluggish for whatever reason -- mailto:av1...@comtv.ru -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
On 09/10/2010 07:47 PM, H. Peter Anvin wrote: > On 09/10/2010 06:08 PM, H. Peter Anvin wrote: >> >> Any remotely recent stock distro should have support for it. I say >> "should", because I haven't actually tested it with a Linux guest yet. >> >> I'll try to do that later; I have to leave now. >> > > Just tested it on a stock Fedora 13 64 bit VM; it behaves exactly the > same way as under Win7. Just for the sake of completeness, the Qemu command line was: ~/qemu/git-kvm/x86_64-softmmu/qemu-system-x86_64 -enable-kvm -smp 2 -m 1024 -usb -soundhw usb -hda qemu-fc13-64.img -serial stdio ... and this was with the usb-audio patch applied against top of the the qemu-kvm git tree (the patch applies against the top of the main qemu tree too, but because KVM isn't very stable there it was faster to use the KVM tree.) -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Qemu-devel] Re: [PATCH] [RFC] Add support for a USB audio device model
On 09/10/2010 06:08 PM, H. Peter Anvin wrote: > > Any remotely recent stock distro should have support for it. I say > "should", because I haven't actually tested it with a Linux guest yet. > > I'll try to do that later; I have to leave now. > Just tested it on a stock Fedora 13 64 bit VM; it behaves exactly the same way as under Win7. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
